Global Patent Index - EP 1440805 A4

EP 1440805 A4 20050817 - AN INK CARTRIDGE FOR A PRINTER

Title (en)

AN INK CARTRIDGE FOR A PRINTER

Title (de)

TINTENPATRONE FÜR EINEN DRUCKER

Title (fr)

CARTOUCHE D'ENCRE POUR IMPRIMANTE

Publication

EP 1440805 A4 20050817 (EN)

Application

EP 02774262 A 20021015

Priority

  • CN 0200723 W 20021015
  • CN 01265494 U 20011031
  • CN 01142340 A 20011211
  • CN 02115259 A 20020523

Abstract (en)

[origin: WO03037634A1] The ink cartridge comprises a cartridge body with an ink chamber. On one side of the cartridge body is provided an ink supply port, and an air channel is positioned on the opposite side. The ink chamber is composed of a main chamber and a communicating sub-chamber, an ink-out inspection prism being provided close to the communicating portion. A check valve through which the sub-chamber is communicated with the ink supply port is provided sideways between the side walls adjacent to the ink supply port. In this invention, the nominal volume of each ink cartridge is increased, and there is no such problem that a certain amount of ink continues to be fed after the ink-out indicative signal being sent out in case of no porous material. Further, the technical solution of the sideways-provided check valve improves the manufacturability and the ink supply stability.

[origin: WO03037634A1] The ink cartridge comprises a cartridge body with an ink chamber. On one side of the cartridge body is provided an ink supply port, and an air channel is positioned on the opposite side. The ink chamber is composed of a main chamber and a communicating sub−chamber, an ink−out inspection prism being provided close to the communicating portion. A check valve through which the sub−chamber is communicated with the ink supply port is provided sideways between the side walls adjacent to the ink supply port. In this invention, the nominal volume of each ink cartridge is increased, and there is no such problem that a certain amount of ink continues to be fed after the ink−out indicative signal being sent out in case of no porous material. Further, the technical solution of the sideways−provided check valve improves the manufacturability and the ink supply stability.

IPC 1-7

B41J 2/175

IPC 8 full level

B41J 2/175 (2006.01)

CPC (source: EP US)

B41J 2/17513 (2013.01 - EP US); B41J 2/17523 (2013.01 - EP US); B41J 2/17553 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

EP 1440805 A1 20040728; EP 1440805 A4 20050817; EP 1440805 B1 20061213; AT E348006 T1 20070115; DE 60216800 D1 20070125; DE 60216800 T2 20071004; ES 2275916 T3 20070616; JP 2005506920 A 20050310; US 2005068387 A1 20050331; US 7246891 B2 20070724; WO 03037634 A1 20030508; WO 03037634 A8 20040617

DOCDB simple family (application)

EP 02774262 A 20021015; AT 02774262 T 20021015; CN 0200723 W 20021015; DE 60216800 T 20021015; ES 02774262 T 20021015; JP 2003539947 A 20021015; US 49399204 A 20041025